d138b7abb9
preen (-p), and in that case the filesystem is skipped if it is clean. A new flag "-f" for 'force' has been added which basically gives back the old behavior of checking all the filesystems all the time. This very closely models the behavior of SunOS and Ultrix.
337 lines
8.4 KiB
C
337 lines
8.4 KiB
C
/*
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* Copyright (c) 1980, 1986, 1993
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* The Regents of the University of California. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by the University of
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* California, Berkeley and its contributors.
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* 4. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#ifndef lint
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static char copyright[] =
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"@(#) Copyright (c) 1980, 1986, 1993\n\
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The Regents of the University of California. All rights reserved.\n";
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#endif /* not lint */
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#ifndef lint
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static char sccsid[] = "@(#)main.c 8.2 (Berkeley) 1/23/94";
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#endif /* not lint */
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#include <sys/param.h>
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#include <sys/time.h>
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#include <sys/proc.h>
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#include <sys/mount.h>
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#include <ufs/ufs/dinode.h>
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#include <ufs/ffs/fs.h>
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#include <fstab.h>
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#include <stdlib.h>
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#include <string.h>
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#include <ctype.h>
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#include <stdio.h>
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#include "fsck.h"
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void catch(), catchquit(), voidquit();
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int returntosingle;
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main(argc, argv)
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int argc;
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char *argv[];
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{
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int ch;
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int ret, maxrun = 0;
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extern int docheck(), checkfilesys();
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extern char *optarg, *blockcheck();
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extern int optind;
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sync();
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while ((ch = getopt(argc, argv, "dfpnNyYb:c:l:m:")) != EOF) {
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switch (ch) {
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case 'p':
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preen++;
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break;
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case 'b':
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bflag = argtoi('b', "number", optarg, 10);
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printf("Alternate super block location: %d\n", bflag);
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break;
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case 'c':
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cvtlevel = argtoi('c', "conversion level", optarg, 10);
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break;
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case 'd':
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debug++;
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break;
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case 'f':
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fflag++;
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break;
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case 'l':
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maxrun = argtoi('l', "number", optarg, 10);
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break;
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case 'm':
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lfmode = argtoi('m', "mode", optarg, 8);
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if (lfmode &~ 07777)
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errexit("bad mode to -m: %o\n", lfmode);
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printf("** lost+found creation mode %o\n", lfmode);
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break;
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case 'n':
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case 'N':
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nflag++;
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yflag = 0;
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break;
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case 'y':
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case 'Y':
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yflag++;
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nflag = 0;
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break;
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default:
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errexit("%c option?\n", ch);
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}
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}
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argc -= optind;
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argv += optind;
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if (signal(SIGINT, SIG_IGN) != SIG_IGN)
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(void)signal(SIGINT, catch);
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if (preen)
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(void)signal(SIGQUIT, catchquit);
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if (argc) {
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while (argc-- > 0)
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(void)checkfilesys(blockcheck(*argv++), 0, 0L, 0);
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exit(0);
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}
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ret = checkfstab(preen, maxrun, docheck, checkfilesys);
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if (returntosingle)
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exit(2);
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exit(ret);
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}
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argtoi(flag, req, str, base)
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int flag;
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char *req, *str;
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int base;
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{
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char *cp;
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int ret;
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ret = (int)strtol(str, &cp, base);
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if (cp == str || *cp)
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errexit("-%c flag requires a %s\n", flag, req);
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return (ret);
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}
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/*
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* Determine whether a filesystem should be checked.
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*/
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docheck(fsp)
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register struct fstab *fsp;
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{
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if (strcmp(fsp->fs_vfstype, "ufs") ||
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(strcmp(fsp->fs_type, FSTAB_RW) &&
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strcmp(fsp->fs_type, FSTAB_RO)) ||
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fsp->fs_passno == 0)
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return (0);
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return (1);
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}
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/*
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* Check the specified filesystem.
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*/
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/* ARGSUSED */
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checkfilesys(filesys, mntpt, auxdata, child)
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char *filesys, *mntpt;
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long auxdata;
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{
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daddr_t n_ffree, n_bfree;
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struct dups *dp;
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struct zlncnt *zlnp;
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int cylno;
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if (preen && child)
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(void)signal(SIGQUIT, voidquit);
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cdevname = filesys;
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if (debug && preen)
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pwarn("starting\n");
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if (setup(filesys) == 0) {
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if (preen)
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pfatal("CAN'T CHECK FILE SYSTEM.");
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return (0);
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}
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if (preen && sblock.fs_clean && !fflag) {
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pwarn("clean, %ld free ", sblock.fs_cstotal.cs_nffree +
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sblock.fs_frag * sblock.fs_cstotal.cs_nbfree);
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printf("(%ld frags, %ld blocks, %.1f%% fragmentation)\n",
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sblock.fs_cstotal.cs_nffree,
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sblock.fs_cstotal.cs_nbfree,
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(float)(sblock.fs_cstotal.cs_nffree * 100) /
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sblock.fs_dsize);
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return(0);
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}
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/*
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* 1: scan inodes tallying blocks used
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*/
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if (preen == 0) {
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printf("** Last Mounted on %s\n", sblock.fs_fsmnt);
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if (hotroot)
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printf("** Root file system\n");
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printf("** Phase 1 - Check Blocks and Sizes\n");
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}
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pass1();
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/*
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* 1b: locate first references to duplicates, if any
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*/
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if (duplist) {
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if (preen)
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pfatal("INTERNAL ERROR: dups with -p");
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printf("** Phase 1b - Rescan For More DUPS\n");
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pass1b();
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}
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/*
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* 2: traverse directories from root to mark all connected directories
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*/
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if (preen == 0)
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printf("** Phase 2 - Check Pathnames\n");
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pass2();
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/*
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* 3: scan inodes looking for disconnected directories
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*/
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if (preen == 0)
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printf("** Phase 3 - Check Connectivity\n");
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pass3();
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/*
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* 4: scan inodes looking for disconnected files; check reference counts
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*/
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if (preen == 0)
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printf("** Phase 4 - Check Reference Counts\n");
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pass4();
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/*
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* 5: check and repair resource counts in cylinder groups
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*/
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if (preen == 0)
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printf("** Phase 5 - Check Cyl groups\n");
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pass5();
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/*
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* print out summary statistics
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*/
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n_ffree = sblock.fs_cstotal.cs_nffree;
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n_bfree = sblock.fs_cstotal.cs_nbfree;
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pwarn("%ld files, %ld used, %ld free ",
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n_files, n_blks, n_ffree + sblock.fs_frag * n_bfree);
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printf("(%ld frags, %ld blocks, %d.%d%% fragmentation)\n",
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n_ffree, n_bfree, (n_ffree * 100) / sblock.fs_dsize,
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((n_ffree * 1000 + sblock.fs_dsize / 2) / sblock.fs_dsize) % 10);
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if (debug &&
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(n_files -= maxino - ROOTINO - sblock.fs_cstotal.cs_nifree))
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printf("%ld files missing\n", n_files);
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if (debug) {
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n_blks += sblock.fs_ncg *
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(cgdmin(&sblock, 0) - cgsblock(&sblock, 0));
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n_blks += cgsblock(&sblock, 0) - cgbase(&sblock, 0);
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n_blks += howmany(sblock.fs_cssize, sblock.fs_fsize);
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if (n_blks -= maxfsblock - (n_ffree + sblock.fs_frag * n_bfree))
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printf("%ld blocks missing\n", n_blks);
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if (duplist != NULL) {
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printf("The following duplicate blocks remain:");
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for (dp = duplist; dp; dp = dp->next)
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printf(" %ld,", dp->dup);
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printf("\n");
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}
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if (zlnhead != NULL) {
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printf("The following zero link count inodes remain:");
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for (zlnp = zlnhead; zlnp; zlnp = zlnp->next)
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printf(" %lu,", zlnp->zlncnt);
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printf("\n");
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}
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}
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zlnhead = (struct zlncnt *)0;
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duplist = (struct dups *)0;
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muldup = (struct dups *)0;
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inocleanup();
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if (fsmodified || (!sblock.fs_clean && preen && !nflag && !hotroot)) {
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sblock.fs_clean = 1;
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(void)time(&sblock.fs_time);
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sbdirty();
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}
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if (cvtlevel && sblk.b_dirty) {
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/*
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* Write out the duplicate super blocks
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*/
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for (cylno = 0; cylno < sblock.fs_ncg; cylno++)
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bwrite(fswritefd, (char *)&sblock,
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fsbtodb(&sblock, cgsblock(&sblock, cylno)), SBSIZE);
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}
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ckfini();
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free(blockmap);
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free(statemap);
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free((char *)lncntp);
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if (!fsmodified)
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return (0);
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if (!preen)
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printf("\n***** FILE SYSTEM WAS MODIFIED *****\n");
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if (hotroot) {
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struct statfs stfs_buf;
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/*
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* We modified the root. Do a mount update on
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* it, unless it is read-write, so we can continue.
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*/
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if (statfs("/", &stfs_buf) == 0) {
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long flags = stfs_buf.f_flags;
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struct ufs_args args;
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int ret;
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if (flags & MNT_RDONLY) {
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args.fspec = 0;
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args.export.ex_flags = 0;
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args.export.ex_root = 0;
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flags |= MNT_UPDATE | MNT_RELOAD;
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ret = mount(MOUNT_UFS, "/", flags, &args);
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if (ret == 0)
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return(0);
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}
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}
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if (!preen)
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printf("\n***** REBOOT NOW *****\n");
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sync();
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return (4);
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}
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return (0);
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}
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